v. (UN-2 3.)
1588. Lucar, trans. Tartaglias Colloq. Shooting, 36. If the Artillery should be choked with nayles or otherwise, whether it be possible to devise a waie to unchoke quickly the same Artillery.
1888. Times (weekly ed.), 3 Feb., 3/3. She tried to unchoke it and took three parts of a pailful out.